Switch to alejandra for nix formatting

I mostly wanted a formatter that would format `inherit` blocks
vertically, because otherwise they are super hard to read when diffing
or even just editing.  Both alejandra and the new nixos/nixfmt format
verically like this, but alejandra has slightly better format (I guess)
and for some reason nixfmt did not respect my `GLOBIGNORE` setting when
doing `nixfmt **/*.nix` so it was trying to format stuff in `_/nix`, and
failed. So anyway I went with alejandra.

- https://github.com/kamadorueda/alejandra
- https://discourse.nixos.org/t/enforcing-nix-formatting-in-nixpkgs/49506

23 files changed, 598 insertions, 466 deletions

diff --git a/Omni/Bild/Builder.nix b/Omni/Bild/Builder.nix
index b4e6780..09e478b 100644
--- a/Omni/Bild/Builder.nix
+++ b/Omni/Bild/Builder.nix
@@ -1,11 +1,14 @@
-/* This is the library of nix builders. Some rules to follow:
-   - Keep this code as minimal as possible. I'd rather write Haskell than Nix,
-     wouldn't you?
-   - Try to reuse as much upstream Nix as possible.
+/*
+This is the library of nix builders. Some rules to follow:
+- Keep this code as minimal as possible. I'd rather write Haskell than Nix,
+  wouldn't you?
+- Try to reuse as much upstream Nix as possible.
 */
-{ analysisJSON, bild }:
-with bild;
-let
+{
+  analysisJSON,
+  bild,
+}:
+with bild; let
   analysis = builtins.fromJSON analysisJSON;
 
   # common bash functions for the builder
@@ -16,158 +19,166 @@ let
       }
   '';
 
-  build = _: target:
-    let
-      name = target.out;
-      root = builtins.getEnv "CODEROOT";
-      mainModule = target.mainModule;
-      compileLine = lib.strings.concatStringsSep " "
-        ([ target.compiler ] ++ target.compilerFlags);
+  build = _: target: let
+    name = target.out;
+    root = builtins.getEnv "CODEROOT";
+    mainModule = target.mainModule;
+    compileLine =
+      lib.strings.concatStringsSep " "
+      ([target.compiler] ++ target.compilerFlags);
 
-      allSources = target.srcs ++ [ target.quapath ];
+    allSources = target.srcs ++ [target.quapath];
 
-      isEmpty = x: x == null || x == [ ];
+    isEmpty = x: x == null || x == [];
 
-      skip = [ "_" ".direnv" ];
-      filter = file: type:
-        if lib.lists.elem (builtins.baseNameOf file) skip then
-          false
-          # TODO: this means any new directory will cause a rebuild. this bad. i
-          # should recurse into the directory and match against the srcs. for now I
-          # just use preBuild to delete empty dirs
-        else if type == "directory" then
-          true
-        else if type == "regular" then
-          lib.trivial.pipe file [
-            (f: lib.strings.removePrefix "${root}/" f)
-            (f: lib.lists.elem f allSources)
-          ]
-        else
-          false;
+    skip = ["_" ".direnv"];
+    filter = file: type:
+      if lib.lists.elem (builtins.baseNameOf file) skip
+      then false
+      # TODO: this means any new directory will cause a rebuild. this bad. i
+      # should recurse into the directory and match against the srcs. for now I
+      # just use preBuild to delete empty dirs
+      else if type == "directory"
+      then true
+      else if type == "regular"
+      then
+        lib.trivial.pipe file [
+          (f: lib.strings.removePrefix "${root}/" f)
+          (f: lib.lists.elem f allSources)
+        ]
+      else false;
 
-      # remove empty directories, leftover from the src filter
-      preBuild = "find . -type d -empty -delete";
+    # remove empty directories, leftover from the src filter
+    preBuild = "find . -type d -empty -delete";
 
-      src = lib.sources.cleanSourceWith {
-        inherit filter;
-        src = lib.sources.cleanSource root;
-      };
+    src = lib.sources.cleanSourceWith {
+      inherit filter;
+      src = lib.sources.cleanSource root;
+    };
 
-      langdeps_ = if isEmpty target.langdeps then
-        [ ]
+    langdeps_ =
+      if isEmpty target.langdeps
+      then []
       else
         lib.attrsets.attrVals target.langdeps (lib.attrsets.getAttrFromPath
-          (lib.strings.splitString "." target.packageSet) bild);
+          (lib.strings.splitString "." target.packageSet)
+          bild);
 
-      sysdeps_ = if isEmpty target.sysdeps then
-        [ ]
-      else
-        lib.attrsets.attrVals target.sysdeps pkgs;
+    sysdeps_ =
+      if isEmpty target.sysdeps
+      then []
+      else lib.attrsets.attrVals target.sysdeps pkgs;
 
-      rundeps_ = if isEmpty target.rundeps then
-        [ ]
-      else
-        lib.attrsets.attrVals target.rundeps pkgs;
+    rundeps_ =
+      if isEmpty target.rundeps
+      then []
+      else lib.attrsets.attrVals target.rundeps pkgs;
 
-      CODEROOT = ".";
+    CODEROOT = ".";
 
-      builders = {
-        base = stdenv.mkDerivation rec {
-          inherit name src CODEROOT preBuild;
-          buildInputs = langdeps_ ++ sysdeps_;
-          installPhase = "install -D ${name} $out/bin/${name}";
-          buildPhase = compileLine;
-        };
+    builders = {
+      base = stdenv.mkDerivation rec {
+        inherit name src CODEROOT preBuild;
+        buildInputs = langdeps_ ++ sysdeps_;
+        installPhase = "install -D ${name} $out/bin/${name}";
+        buildPhase = compileLine;
+      };
 
-        haskell = stdenv.mkDerivation rec {
-          inherit name src CODEROOT preBuild;
-          nativeBuildInputs = [ makeWrapper ];
-          buildInputs = sysdeps_ ++ [
+      haskell = stdenv.mkDerivation rec {
+        inherit name src CODEROOT preBuild;
+        nativeBuildInputs = [makeWrapper];
+        buildInputs =
+          sysdeps_
+          ++ [
             (haskell.ghcWith (p: (lib.attrsets.attrVals target.langdeps p)))
           ];
-          buildPhase = compileLine;
-          installPhase = ''
-            install -D ${name} $out/bin/${name}
-            wrapProgram $out/bin/${name} \
-              --prefix PATH : ${lib.makeBinPath rundeps_}
-          '';
-        };
+        buildPhase = compileLine;
+        installPhase = ''
+          install -D ${name} $out/bin/${name}
+          wrapProgram $out/bin/${name} \
+            --prefix PATH : ${lib.makeBinPath rundeps_}
+        '';
+      };
 
-        c = stdenv.mkDerivation rec {
-          inherit name src CODEROOT preBuild;
-          buildInputs = langdeps_ ++ sysdeps_;
-          installPhase = "install -D ${name} $out/bin/${name}";
-          buildPhase = lib.strings.concatStringsSep " " [
-            compileLine
-            (if isEmpty langdeps_ then
-              ""
-            else
-              "$(pkg-config --cflags ${
-                lib.strings.concatStringsSep " " target.langdeps
-              })")
-            (if isEmpty sysdeps_ then
-              ""
-            else
-              "$(pkg-config --libs ${
-                lib.strings.concatStringsSep " " target.sysdeps
-              })")
-          ];
-        };
+      c = stdenv.mkDerivation rec {
+        inherit name src CODEROOT preBuild;
+        buildInputs = langdeps_ ++ sysdeps_;
+        installPhase = "install -D ${name} $out/bin/${name}";
+        buildPhase = lib.strings.concatStringsSep " " [
+          compileLine
+          (
+            if isEmpty langdeps_
+            then ""
+            else "$(pkg-config --cflags ${
+              lib.strings.concatStringsSep " " target.langdeps
+            })"
+          )
+          (
+            if isEmpty sysdeps_
+            then ""
+            else "$(pkg-config --libs ${
+              lib.strings.concatStringsSep " " target.sysdeps
+            })"
+          )
+        ];
+      };
 
-        python = python.buildPythonApplication rec {
-          inherit name src CODEROOT;
-          nativeBuildInputs = [ makeWrapper ];
-          propagatedBuildInputs = langdeps_ ++ sysdeps_ ++ rundeps_;
-          buildInputs = sysdeps_;
-          nativeCheckInputs = [ pkgs.ruff python.packages.mypy ];
-          checkPhase = ''
-            . ${commonBash}
-            cp ${../../pyproject.toml} ./pyproject.toml
-            check ruff format --exclude 'setup.py' --check .
-            # ignore EXE here to support run.sh shebangs
-            check ruff check \
-              --ignore EXE \
-              --exclude 'setup.py' \
-              --exclude '__init__.py' \
-              .
-            touch ./py.typed
-            check python -m mypy \
-              --explicit-package-bases \
-              --no-error-summary \
-              --exclude 'setup\.py$' \
-              .
-          '';
-          installCheck = ''
-            . ${commonBash}
-            check python -m ${mainModule} test
-          '';
-          preBuild = ''
-            # remove empty directories, leftover from the src filter
-            find . -type d -empty -delete
-            # initialize remaining dirs as python modules
-            find . -type d -exec touch {}/__init__.py \;
-            # generate a minimal setup.py
-            cat > setup.py << EOF
-            from setuptools import find_packages, setup
-            setup(
-                name="${name}",
-                entry_points={"console_scripts":["${name} = ${mainModule}:main"]},
-                version="0.0.0",
-                url="git://simatime.com/omni.git",
-                author="dev",
-                author_email="dev@simatime.com",
-                description="nil",
-                packages=find_packages(),
-                install_requires=[],
-            )
-            EOF
-          '';
-          pythonImportsCheck = [ mainModule ]; # sanity check
-        };
+      python = python.buildPythonApplication rec {
+        inherit name src CODEROOT;
+        nativeBuildInputs = [makeWrapper];
+        propagatedBuildInputs = langdeps_ ++ sysdeps_ ++ rundeps_;
+        buildInputs = sysdeps_;
+        nativeCheckInputs = [pkgs.ruff python.packages.mypy];
+        checkPhase = ''
+          . ${commonBash}
+          cp ${../../pyproject.toml} ./pyproject.toml
+          check ruff format --exclude 'setup.py' --check .
+          # ignore EXE here to support run.sh shebangs
+          check ruff check \
+            --ignore EXE \
+            --exclude 'setup.py' \
+            --exclude '__init__.py' \
+            .
+          touch ./py.typed
+          check python -m mypy \
+            --explicit-package-bases \
+            --no-error-summary \
+            --exclude 'setup\.py$' \
+            .
+        '';
+        installCheck = ''
+          . ${commonBash}
+          check python -m ${mainModule} test
+        '';
+        preBuild = ''
+          # remove empty directories, leftover from the src filter
+          find . -type d -empty -delete
+          # initialize remaining dirs as python modules
+          find . -type d -exec touch {}/__init__.py \;
+          # generate a minimal setup.py
+          cat > setup.py << EOF
+          from setuptools import find_packages, setup
+          setup(
+              name="${name}",
+              entry_points={"console_scripts":["${name} = ${mainModule}:main"]},
+              version="0.0.0",
+              url="git://simatime.com/omni.git",
+              author="dev",
+              author_email="dev@simatime.com",
+              description="nil",
+              packages=find_packages(),
+              install_requires=[],
+          )
+          EOF
+        '';
+        pythonImportsCheck = [mainModule]; # sanity check
       };
-    in builders.${target.builder};
+    };
+  in
+    builders.${target.builder};
   # the bild caller gives us the Analysis type, which is a hashmap, but i need to
   # return a single drv, so just take the first one for now. ideally i would only
   # pass Target, one at a time, (perhaps parallelized in haskell land) and then i
   # wouldn't need all of this let nesting
-in builtins.head (lib.attrsets.mapAttrsToList build analysis)
+in
+  builtins.head (lib.attrsets.mapAttrsToList build analysis)
diff --git a/Omni/Bild/CcacheWrapper.nix b/Omni/Bild/CcacheWrapper.nix
index 644c2f6..26e6fc3 100644
--- a/Omni/Bild/CcacheWrapper.nix
+++ b/Omni/Bild/CcacheWrapper.nix
@@ -1,6 +1,4 @@
-self: super:
-
-let
+self: super: let
   # this should come from config.programs.ccache.cacheDir but I can't figure out
   # how to access that from a nixpkgs overlay, so just hardcode the default
   ccacheDir = "/var/cache/ccache";
@@ -9,11 +7,13 @@ let
   # deadnix: skip
   fixwebkit = pkg:
     self.useCcacheStdenv (pkg.overrideAttrs (attrs: rec {
-      preConfigure = attrs.preConfigure + ''
-        # not sure which of these works so just do them both
-        export NUMBER_OF_PROCESSORS=$NIX_BUILD_CORES
-        ninjaFlagsArray+=("-l$NIX_BUILD_CORES")
-      '';
+      preConfigure =
+        attrs.preConfigure
+        + ''
+          # not sure which of these works so just do them both
+          export NUMBER_OF_PROCESSORS=$NIX_BUILD_CORES
+          ninjaFlagsArray+=("-l$NIX_BUILD_CORES")
+        '';
     }));
 in {
   ccacheWrapper = super.ccacheWrapper.override {
@@ -42,7 +42,7 @@ in {
     '';
   };
 
-  useCcacheStdenv = pkg: pkg.override { stdenv = super.ccacheStdenv; };
+  useCcacheStdenv = pkg: pkg.override {stdenv = super.ccacheStdenv;};
 
   cudann = self.useCcacheStdenv super.cudann;
   llvm = self.useCcacheStdenv super.llvm;
diff --git a/Omni/Bild/Constants.nix b/Omni/Bild/Constants.nix
index 776f580..f54de97 100644
--- a/Omni/Bild/Constants.nix
+++ b/Omni/Bild/Constants.nix
@@ -1 +1 @@
-{ ghcCompiler = "ghc966"; }
+{ghcCompiler = "ghc966";}
diff --git a/Omni/Bild/Deps.nix b/Omni/Bild/Deps.nix
index 3414418..0b23f9f 100644
--- a/Omni/Bild/Deps.nix
+++ b/Omni/Bild/Deps.nix
@@ -1,6 +1,4 @@
-_self: super:
-
-{
+_self: super: {
   # Needs upgrading for guile 3
   # inspekt3d = super.callPackage ./Deps/inspekt3d.nix {};
 
@@ -28,9 +26,9 @@ _self: super:
 
   llm = super.overrideSrc super.llm super.sources.llm;
 
-  nostr-rs-relay = super.callPackage ./Deps/nostr-rs-relay.nix { };
+  nostr-rs-relay = super.callPackage ./Deps/nostr-rs-relay.nix {};
 
-  ollama = super.ollama.override { acceleration = "cuda"; };
+  ollama = super.ollama.override {acceleration = "cuda";};
 
-  radicale = super.radicale.overrideAttrs (_old: { doCheck = false; });
+  radicale = super.radicale.overrideAttrs (_old: {doCheck = false;});
 }
diff --git a/Omni/Bild/Deps/C.nix b/Omni/Bild/Deps/C.nix
index 3f670cd..833fc40 100644
--- a/Omni/Bild/Deps/C.nix
+++ b/Omni/Bild/Deps/C.nix
@@ -1 +1 @@
-[ "libsodium" ]
+["libsodium"]
diff --git a/Omni/Bild/Deps/Haskell.nix b/Omni/Bild/Deps/Haskell.nix
index 04f3a74..5d6abbb 100644
--- a/Omni/Bild/Deps/Haskell.nix
+++ b/Omni/Bild/Deps/Haskell.nix
@@ -1,6 +1,5 @@
 # This is the global set of Haskell packages which gets deployed to Hoogle, and
 # is available for selecting.
-
 [
   "MonadRandom"
   "QuickCheck"
diff --git a/Omni/Bild/Deps/accelerate.nix b/Omni/Bild/Deps/accelerate.nix
index be1d2fd..55a8609 100644
--- a/Omni/Bild/Deps/accelerate.nix
+++ b/Omni/Bild/Deps/accelerate.nix
@@ -1,10 +1,16 @@
-{ fetchFromGitHub, buildPythonPackage, numpy, packaging, psutil, pyyaml, torch
+{
+  fetchFromGitHub,
+  buildPythonPackage,
+  numpy,
+  packaging,
+  psutil,
+  pyyaml,
+  torch,
 }:
-
 buildPythonPackage rec {
   name = "accelerate";
   version = "0.15.0";
-  propagatedBuildInputs = [ numpy packaging psutil pyyaml torch ];
+  propagatedBuildInputs = [numpy packaging psutil pyyaml torch];
   doCheck = false;
   src = fetchFromGitHub {
     owner = "huggingface";
@@ -13,4 +19,3 @@ buildPythonPackage rec {
     sha256 = "sha256-agfbOaa+Nm10HZkd2Y7zR3R37n+vLNsxCyxZax6O3Lo=";
   };
 }
-
diff --git a/Omni/Bild/Deps/bitsandbytes.nix b/Omni/Bild/Deps/bitsandbytes.nix
index eb32aac..c336559 100644
--- a/Omni/Bild/Deps/bitsandbytes.nix
+++ b/Omni/Bild/Deps/bitsandbytes.nix
@@ -1,7 +1,17 @@
-{ lib, buildPythonPackage, fetchFromGitHub, python, pythonOlder, pytestCheckHook
-, setuptools, torch, einops, lion-pytorch, scipy, symlinkJoin }:
-
-let
+{
+  lib,
+  buildPythonPackage,
+  fetchFromGitHub,
+  python,
+  pythonOlder,
+  pytestCheckHook,
+  setuptools,
+  torch,
+  einops,
+  lion-pytorch,
+  scipy,
+  symlinkJoin,
+}: let
   pname = "bitsandbytes";
   version = "0.38.0";
 
@@ -24,63 +34,68 @@ let
       [
         cuda_cudart # cuda_runtime.h cuda_runtime_api.h
         cuda_nvcc
-      ] ++ cuda-common-redist;
+      ]
+      ++ cuda-common-redist;
   };
 
   cuda-redist = symlinkJoin {
     name = "cuda-redist-${cudaVersion}";
     paths = cuda-common-redist;
   };
-
-in buildPythonPackage {
-  inherit pname version;
-  format = "pyproject";
-
-  disabled = pythonOlder "3.7";
-
-  src = fetchFromGitHub {
-    owner = "TimDettmers";
-    repo = pname;
-    rev = "refs/tags/${version}";
-    hash = "sha256-gGlbzTDvZNo4MhcYzLvWuB2ec7q+Qt5/LtTbJ0Rc+Kk=";
-  };
-
-  postPatch = ''
-    substituteInPlace Makefile --replace "/usr/bin/g++" "g++" --replace "lib64" "lib"
-    substituteInPlace bitsandbytes/cuda_setup/main.py  \
-      --replace "binary_path = package_dir / binary_name"  \
-                "binary_path = Path('$out/${python.sitePackages}/${pname}')/binary_name"
-  '' + lib.optionalString torch.cudaSupport ''
-    substituteInPlace bitsandbytes/cuda_setup/main.py  \
-      --replace "/usr/local/cuda/lib64" "${cuda-native-redist}/lib"
-  '';
-
-  CUDA_HOME = "${cuda-native-redist}";
-
-  preBuild = if torch.cudaSupport then
-    with torch.cudaPackages;
-    let
-      cudaVersion = lib.concatStrings
-        (lib.splitVersion torch.cudaPackages.cudaMajorMinorVersion);
-    in "make CUDA_VERSION=${cudaVersion} cuda${cudaMajorVersion}x"
-  else
-    "make CUDA_VERSION=CPU cpuonly";
-
-  nativeBuildInputs = [ setuptools ]
-    ++ lib.optionals torch.cudaSupport [ cuda-native-redist ];
-  buildInputs = lib.optionals torch.cudaSupport [ cuda-redist ];
-
-  propagatedBuildInputs = [ torch ];
-
-  doCheck = false; # tests require CUDA and also GPU access
-  nativeCheckInputs = [ pytestCheckHook einops lion-pytorch scipy ];
-
-  pythonImportsCheck = [ "bitsandbytes" ];
-
-  meta = with lib; {
-    homepage = "https://github.com/TimDettmers/bitsandbytes";
-    description = "8-bit CUDA functions for PyTorch";
-    license = licenses.mit;
-    maintainers = with maintainers; [ bcdarwin ];
-  };
-}
+in
+  buildPythonPackage {
+    inherit pname version;
+    format = "pyproject";
+
+    disabled = pythonOlder "3.7";
+
+    src = fetchFromGitHub {
+      owner = "TimDettmers";
+      repo = pname;
+      rev = "refs/tags/${version}";
+      hash = "sha256-gGlbzTDvZNo4MhcYzLvWuB2ec7q+Qt5/LtTbJ0Rc+Kk=";
+    };
+
+    postPatch =
+      ''
+        substituteInPlace Makefile --replace "/usr/bin/g++" "g++" --replace "lib64" "lib"
+        substituteInPlace bitsandbytes/cuda_setup/main.py  \
+          --replace "binary_path = package_dir / binary_name"  \
+                    "binary_path = Path('$out/${python.sitePackages}/${pname}')/binary_name"
+      ''
+      + lib.optionalString torch.cudaSupport ''
+        substituteInPlace bitsandbytes/cuda_setup/main.py  \
+          --replace "/usr/local/cuda/lib64" "${cuda-native-redist}/lib"
+      '';
+
+    CUDA_HOME = "${cuda-native-redist}";
+
+    preBuild =
+      if torch.cudaSupport
+      then
+        with torch.cudaPackages; let
+          cudaVersion =
+            lib.concatStrings
+            (lib.splitVersion torch.cudaPackages.cudaMajorMinorVersion);
+        in "make CUDA_VERSION=${cudaVersion} cuda${cudaMajorVersion}x"
+      else "make CUDA_VERSION=CPU cpuonly";
+
+    nativeBuildInputs =
+      [setuptools]
+      ++ lib.optionals torch.cudaSupport [cuda-native-redist];
+    buildInputs = lib.optionals torch.cudaSupport [cuda-redist];
+
+    propagatedBuildInputs = [torch];
+
+    doCheck = false; # tests require CUDA and also GPU access
+    nativeCheckInputs = [pytestCheckHook einops lion-pytorch scipy];
+
+    pythonImportsCheck = ["bitsandbytes"];
+
+    meta = with lib; {
+      homepage = "https://github.com/TimDettmers/bitsandbytes";
+      description = "8-bit CUDA functions for PyTorch";
+      license = licenses.mit;
+      maintainers = with maintainers; [bcdarwin];
+    };
+  }
diff --git a/Omni/Bild/Deps/guile-opengl.nix b/Omni/Bild/Deps/guile-opengl.nix
index af01082..cb625e6 100644
--- a/Omni/Bild/Deps/guile-opengl.nix
+++ b/Omni/Bild/Deps/guile-opengl.nix
@@ -1,32 +1,40 @@
-{ stdenv, lib, fetchurl, pkg-config, guile, libGL, libGLU, freeglut }:
-
-let
+{
+  stdenv,
+  lib,
+  fetchurl,
+  pkg-config,
+  guile,
+  libGL,
+  libGLU,
+  freeglut,
+}: let
   name = "guile-opengl-${version}";
   version = "0.1.0";
-in stdenv.mkDerivation {
-  inherit name;
+in
+  stdenv.mkDerivation {
+    inherit name;
 
-  src = fetchurl {
-    url = "mirror://gnu/guile-opengl/${name}.tar.gz";
-    sha256 = "13qfx4xh8baryxqrv986l848ygd0piqwm6s2s90pxk9c0m9vklim";
-  };
+    src = fetchurl {
+      url = "mirror://gnu/guile-opengl/${name}.tar.gz";
+      sha256 = "13qfx4xh8baryxqrv986l848ygd0piqwm6s2s90pxk9c0m9vklim";
+    };
 
-  patchPhase = ''
-    substituteInPlace glx/runtime.scm \
-      --replace '(dynamic-link "libGL")' '(dynamic-link "${libGL}/lib/libGL.so")'
-    substituteInPlace glu/runtime.scm \
-      --replace '(dynamic-link "libGLU")' '(dynamic-link "${libGLU}/lib/libGLU.so")'
-    substituteInPlace glut/runtime.scm \
-      --replace '(dynamic-link "libglut")' '(dynamic-link "${freeglut}/lib/libglut.so")'
-  '';
+    patchPhase = ''
+      substituteInPlace glx/runtime.scm \
+        --replace '(dynamic-link "libGL")' '(dynamic-link "${libGL}/lib/libGL.so")'
+      substituteInPlace glu/runtime.scm \
+        --replace '(dynamic-link "libGLU")' '(dynamic-link "${libGLU}/lib/libGLU.so")'
+      substituteInPlace glut/runtime.scm \
+        --replace '(dynamic-link "libglut")' '(dynamic-link "${freeglut}/lib/libglut.so")'
+    '';
 
-  nativeBuildInputs = [ pkg-config guile libGL libGLU freeglut ];
+    nativeBuildInputs = [pkg-config guile libGL libGLU freeglut];
 
-  meta = with lib; {
-    description = "Guile bindings for the OpenGL graphics API";
-    homepage = "https://www.gnu.org/software/guile-opengl/";
-    license = licenses.gpl3Plus;
-    maintainers = with maintainers; [ vyp ];
-    platforms = platforms.all;
-  };
-}
+    meta = with lib; {
+      description = "Guile bindings for the OpenGL graphics API";
+      homepage = "https://www.gnu.org/software/guile-opengl/";
+      license = licenses.gpl3Plus;
+      maintainers = with maintainers; [vyp];
+      platforms = platforms.all;
+    };
+  }
diff --git a/Omni/Bild/Deps/inspekt3d.nix b/Omni/Bild/Deps/inspekt3d.nix
index 3146350..de3db4e 100644
--- a/Omni/Bild/Deps/inspekt3d.nix
+++ b/Omni/Bild/Deps/inspekt3d.nix
@@ -1,15 +1,24 @@
-{ stdenv, lib, autoreconfHook, pkg-config, guile, guile-opengl, mesa
-, glibcLocales, libfive, sources }:
-
+{
+  stdenv,
+  lib,
+  autoreconfHook,
+  pkg-config,
+  guile,
+  guile-opengl,
+  mesa,
+  glibcLocales,
+  libfive,
+  sources,
+}:
 stdenv.mkDerivation {
   name = "inspekt3d-unstable";
 
   src = sources.inspekt3d;
   version = "unstable-2018-10-17";
 
-  nativeBuildInputs = [ pkg-config autoreconfHook ];
-  buildInputs = [ guile glibcLocales mesa ];
-  propagatedBuildInputs = [ guile-opengl libfive ];
+  nativeBuildInputs = [pkg-config autoreconfHook];
+  buildInputs = [guile glibcLocales mesa];
+  propagatedBuildInputs = [guile-opengl libfive];
 
   preBuild = ''
     substituteInPlace inspekt3d/library.scm \
@@ -24,7 +33,7 @@ stdenv.mkDerivation {
     description = "Lightweight 3D viewer for Libfive written in Guile Scheme";
     homepage = "https://sr.ht/~morgansmith/inspekt3d";
     license = licenses.gpl3;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
     platforms = platforms.all;
   };
 }
diff --git a/Omni/Bild/Deps/interegular.nix b/Omni/Bild/Deps/interegular.nix
index 24065d8..b46f4c8 100644
--- a/Omni/Bild/Deps/interegular.nix
+++ b/Omni/Bild/Deps/interegular.nix
@@ -1,5 +1,8 @@
-{ lib, sources, buildPythonPackage }:
-
+{
+  lib,
+  sources,
+  buildPythonPackage,
+}:
 buildPythonPackage rec {
   pname = "interegular";
   version = sources.interegular.rev;
@@ -7,15 +10,15 @@ buildPythonPackage rec {
 
   src = sources.interegular;
 
-  propagatedBuildInputs = [ ];
+  propagatedBuildInputs = [];
 
   doCheck = false; # no tests currently
-  pythonImportsCheck = [ "interegular" ];
+  pythonImportsCheck = ["interegular"];
 
   meta = with lib; {
     description = "Allows to check regexes for overlaps.";
     homepage = "https://github.com/MegaIng/interegular";
     license = licenses.mit;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Deps/lion-pytorch.nix b/Omni/Bild/Deps/lion-pytorch.nix
index 7b06e78..e8fcf3d 100644
--- a/Omni/Bild/Deps/lion-pytorch.nix
+++ b/Omni/Bild/Deps/lion-pytorch.nix
@@ -1,5 +1,10 @@
-{ lib, buildPythonPackage, pythonOlder, fetchFromGitHub, torch }:
-
+{
+  lib,
+  buildPythonPackage,
+  pythonOlder,
+  fetchFromGitHub,
+  torch,
+}:
 buildPythonPackage rec {
   pname = "lion-pytorch";
   version = "0.1.2";
@@ -13,15 +18,15 @@ buildPythonPackage rec {
     hash = "sha256-9hdpRJvCpv3PeC7f0IXpHt6i+e6LiT0QUl5jeDGelQE=";
   };
 
-  propagatedBuildInputs = [ torch ];
+  propagatedBuildInputs = [torch];
 
-  pythonImportsCheck = [ "lion_pytorch" ];
+  pythonImportsCheck = ["lion_pytorch"];
   doCheck = false; # no tests currently
 
   meta = with lib; {
     description = "Optimizer tuned by Google Brain using genetic algorithms";
     homepage = "https://github.com/lucidrains/lion-pytorch";
     license = licenses.mit;
-    maintainers = with maintainers; [ bcdarwin ];
+    maintainers = with maintainers; [bcdarwin];
   };
 }
diff --git a/Omni/Bild/Deps/llm-ollama.nix b/Omni/Bild/Deps/llm-ollama.nix
index e2b6a66..15b26cc 100644
--- a/Omni/Bild/Deps/llm-ollama.nix
+++ b/Omni/Bild/Deps/llm-ollama.nix
@@ -1,5 +1,13 @@
-{ buildPythonPackage, fetchFromGitHub, lib, llm, ollama, pytestCheckHook
-, setuptools, pythonOlder, }:
+{
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  llm,
+  ollama,
+  pytestCheckHook,
+  setuptools,
+  pythonOlder,
+}:
 buildPythonPackage rec {
   pname = "llm-ollama";
   version = "0.3.0";
@@ -14,27 +22,26 @@ buildPythonPackage rec {
     hash = "sha256-Ar0Ux8BNGY0i764CEk7+48J6jnndlRIIMPZ9tFpXiy4=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  nativeBuildInputs = [setuptools];
 
-  buildInputs = [ llm ollama ];
+  buildInputs = [llm ollama];
 
-  propagatedBuildInputs = [ ollama ];
+  propagatedBuildInputs = [ollama];
 
   disabledTests = [
     # wants to mkdir in the /homeless-shelter
     "test_registered_models"
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [pytestCheckHook];
 
-  pythonImportsCheck = [ "llm_ollama" ];
+  pythonImportsCheck = ["llm_ollama"];
 
   meta = with lib; {
     homepage = "https://github.com/taketwo/llm-ollama";
-    description =
-      "LLM plugin providing access to local Ollama models usting HTTP API";
+    description = "LLM plugin providing access to local Ollama models usting HTTP API";
     changelog = "https://github.com/taketwo/llm-ollama/releases/tag/${version}";
     license = licenses.asl20;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Deps/llm-sentence-transformers.nix b/Omni/Bild/Deps/llm-sentence-transformers.nix
index 4d63c83..f6766ee 100644
--- a/Omni/Bild/Deps/llm-sentence-transformers.nix
+++ b/Omni/Bild/Deps/llm-sentence-transformers.nix
@@ -1,5 +1,13 @@
-{ buildPythonPackage, fetchFromGitHub, lib, llm, sentence-transformers
-, pytestCheckHook, setuptools, pythonOlder, }:
+{
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  llm,
+  sentence-transformers,
+  pytestCheckHook,
+  setuptools,
+  pythonOlder,
+}:
 buildPythonPackage rec {
   pname = "llm-sentence-transformers";
   version = "0.2";
@@ -14,11 +22,11 @@ buildPythonPackage rec {
     hash = "sha256-1NlKPWekdVLrNkIMWXLCRWn54RlAEuEDWMCDnQHNkBc=";
   };
 
-  nativeBuildInputs = [ setuptools ];
+  nativeBuildInputs = [setuptools];
 
-  buildInputs = [ llm sentence-transformers ];
+  buildInputs = [llm sentence-transformers];
 
-  propagatedBuildInputs = [ sentence-transformers ];
+  propagatedBuildInputs = [sentence-transformers];
 
   # fails because of some pydantic warnings
   doCheck = false;
@@ -27,16 +35,15 @@ buildPythonPackage rec {
     "test_sentence_transformers"
   ];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [pytestCheckHook];
 
-  pythonImportsCheck = [ "llm_sentence_transformers" ];
+  pythonImportsCheck = ["llm_sentence_transformers"];
 
   meta = with lib; {
     homepage = "https://github.com/taketwo/llm-sentence-transformers";
     description = "LLM plugin for embeddings using sentence-transformers";
-    changelog =
-      "https://github.com/taketwo/llm-sentence-transformers/releases/tag/${version}";
+    changelog = "https://github.com/taketwo/llm-sentence-transformers/releases/tag/${version}";
     license = licenses.asl20;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Deps/ludic.nix b/Omni/Bild/Deps/ludic.nix
index dfac06c..58936c7 100644
--- a/Omni/Bild/Deps/ludic.nix
+++ b/Omni/Bild/Deps/ludic.nix
@@ -1,7 +1,19 @@
-{ buildPythonPackage, fetchFromGitHub, lib, setuptools, pytestCheckHook
-, python-multipart, starlette, typeguard, pygments, pytest, pytest-cov, httpx
-, hatchling, hatch-vcs }:
-
+{
+  buildPythonPackage,
+  fetchFromGitHub,
+  lib,
+  setuptools,
+  pytestCheckHook,
+  python-multipart,
+  starlette,
+  typeguard,
+  pygments,
+  pytest,
+  pytest-cov,
+  httpx,
+  hatchling,
+  hatch-vcs,
+}:
 buildPythonPackage rec {
   pname = "ludic";
   version = "0.5.2";
@@ -14,23 +26,23 @@ buildPythonPackage rec {
     hash = "sha256-Zcob2ljyeiCqnCobkDP4ihRTxvs5OtQ4y5+Itsgs/0o=";
   };
 
-  nativeBuildInputs = [ setuptools hatchling hatch-vcs ];
+  nativeBuildInputs = [setuptools hatchling hatch-vcs];
 
-  propagatedBuildInputs = [ python-multipart starlette typeguard pygments ];
+  propagatedBuildInputs = [python-multipart starlette typeguard pygments];
 
-  disabledTestPaths = [ "tests/contrib/test_django.py" ];
+  disabledTestPaths = ["tests/contrib/test_django.py"];
 
-  nativeCheckInputs = [ pytestCheckHook ];
+  nativeCheckInputs = [pytestCheckHook];
 
-  checkInputs = [ pytest pytest-cov httpx ];
+  checkInputs = [pytest pytest-cov httpx];
 
-  pythonImportsCheck = [ "ludic" ];
+  pythonImportsCheck = ["ludic"];
 
   meta = with lib; {
     homepage = "https://github.com/getludic/ludic";
     description = "Web Development in Pure Python with Type-Guided Components.";
     changelog = "https://github.com/getludic/ludic/releases/tag/${version}";
     license = licenses.mit;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Deps/nostr-rs-relay.nix b/Omni/Bild/Deps/nostr-rs-relay.nix
index 0eef13f..df76cdd 100644
--- a/Omni/Bild/Deps/nostr-rs-relay.nix
+++ b/Omni/Bild/Deps/nostr-rs-relay.nix
@@ -1,5 +1,9 @@
-{ fetchFromSourcehut, rustPlatform, pkg-config, openssl }:
-
+{
+  fetchFromSourcehut,
+  rustPlatform,
+  pkg-config,
+  openssl,
+}:
 rustPlatform.buildRustPackage rec {
   pname = "nostr-rs-relay";
   version = "0.7.15";
@@ -13,7 +17,7 @@ rustPlatform.buildRustPackage rec {
 
   cargoSha256 = "sha256-3593pjc4A4NsEnE/ZYsR1vSMCvw2ZJue4EIY6cFa2WA=";
 
-  nativeBuildInputs = [ pkg-config openssl.dev ];
+  nativeBuildInputs = [pkg-config openssl.dev];
 
-  buildInputs = [ openssl.dev ];
+  buildInputs = [openssl.dev];
 }
diff --git a/Omni/Bild/Deps/outlines.nix b/Omni/Bild/Deps/outlines.nix
index 29ef41b..6426c15 100644
--- a/Omni/Bild/Deps/outlines.nix
+++ b/Omni/Bild/Deps/outlines.nix
@@ -1,6 +1,19 @@
-{ lib, sources, buildPythonPackage, interegular, jinja2, lark, numpy, perscache
-, pillow, pydantic, regex, scipy, tenacity, torch }:
-
+{
+  lib,
+  sources,
+  buildPythonPackage,
+  interegular,
+  jinja2,
+  lark,
+  numpy,
+  perscache,
+  pillow,
+  pydantic,
+  regex,
+  scipy,
+  tenacity,
+  torch,
+}:
 buildPythonPackage rec {
   pname = "outlines";
   version = sources.outlines.rev;
@@ -23,12 +36,12 @@ buildPythonPackage rec {
   ];
 
   doCheck = false; # no tests currently
-  pythonImportsCheck = [ "outlines" ];
+  pythonImportsCheck = ["outlines"];
 
   meta = with lib; {
     description = "Probabilistic Generative Model Programming";
     homepage = "https://github.com/normal-computing/outlines";
     license = licenses.asl20;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Deps/perscache.nix b/Omni/Bild/Deps/perscache.nix
index 508a261..889f91c 100644
--- a/Omni/Bild/Deps/perscache.nix
+++ b/Omni/Bild/Deps/perscache.nix
@@ -1,16 +1,23 @@
-{ lib, sources, buildPythonPackage, beartype, cloudpickle, icontract, pbr }:
-
+{
+  lib,
+  sources,
+  buildPythonPackage,
+  beartype,
+  cloudpickle,
+  icontract,
+  pbr,
+}:
 buildPythonPackage rec {
   pname = "perscache";
   version = sources.perscache.rev;
 
   src = sources.perscache;
 
-  propagatedBuildInputs = [ beartype cloudpickle icontract pbr ];
+  propagatedBuildInputs = [beartype cloudpickle icontract pbr];
   PBR_VERSION = version;
 
   doCheck = false; # no tests currently
-  pythonImportsCheck = [ "perscache" ];
+  pythonImportsCheck = ["perscache"];
 
   meta = with lib; {
     description = ''
@@ -20,6 +27,6 @@ buildPythonPackage rec {
     '';
     homepage = "https://github.com/leshchenko1979/perscache";
     license = licenses.mit;
-    maintainers = with maintainers; [ bsima ];
+    maintainers = with maintainers; [bsima];
   };
 }
diff --git a/Omni/Bild/Functions.nix b/Omni/Bild/Functions.nix
index 8b87f86..2a40da2 100644
--- a/Omni/Bild/Functions.nix
+++ b/Omni/Bild/Functions.nix
@@ -10,24 +10,25 @@ _: super: {
   # rules. This will fail if build steps have changed, or if no build
   # rules are available upstream.
   overrideSource = depName:
-    if super ? "${depName}" && super.${depName} ? overrideAttrs then
+    if super ? "${depName}" && super.${depName} ? overrideAttrs
+    then
       super.${depName}.overrideAttrs (attrs:
-        attrs // rec {
+        attrs
+        // rec {
           version =
             super.sources.${depName}.version or super.sources.${depName}.rev;
           src = super.sources.${depName};
         })
-    else
-      null;
+    else null;
 
   # Simply override the 'src' attr on a drv. This is meant to be a simpler
   # alternative to 'overrideSource' above. In an overlay, use it like:
   #    mypkg = super.overrideSrc super.mypkg super.sources.mypkg;
   overrideSrc = dep: src:
     dep.overrideAttrs (attrs:
-      attrs // {
+      attrs
+      // {
         version = src.version or src.rev;
         src = src;
       });
 }
-
diff --git a/Omni/Bild/Haskell.nix b/Omni/Bild/Haskell.nix
index 764ef5d..7e969da 100644
--- a/Omni/Bild/Haskell.nix
+++ b/Omni/Bild/Haskell.nix
@@ -1,37 +1,38 @@
-_self: super:
-
-let
+_self: super: let
   inherit (import ./Constants.nix) ghcCompiler;
 
-  buildCabal = sel: name: sel.callCabal2nix name super.sources.${name} { };
-
+  buildCabal = sel: name: sel.callCabal2nix name super.sources.${name} {};
 in rec {
-
-  haskell = super.haskell // {
-    packages = super.haskell.packages // {
-      "${ghcCompiler}" = super.haskell.packages."${ghcCompiler}".override
-        (_old: {
-          overrides = with super.pkgs.haskell.lib;
-            sel: sup:
-            super.overridePinnedDeps (buildCabal sel) // {
-              ap-normalize = dontCheck sup.ap-normalize;
-              clay = doJailbreak sup.clay;
-              cmark = doJailbreak sup.cmark;
-              docopt = buildCabal sel "docopt";
-              filelock = dontCheck sup.filelock;
-              linear-generics = doJailbreak sup.linear-generics;
-              req = doJailbreak sup.req;
-              servant-auth = doJailbreak sup.servant-auth;
-              servant-auth-server = dontCheck sup.servant-auth-server;
-              shellcheck = doJailbreak sup.shellcheck;
-              string-qq = doJailbreak sup.string-qq;
-              syb-with-class = doJailbreak sup.syb-with-class;
-              th-abstraction = doJailbreak sup.th-abstraction;
-            };
-        });
+  haskell =
+    super.haskell
+    // {
+      packages =
+        super.haskell.packages
+        // {
+          "${ghcCompiler}" =
+            super.haskell.packages."${ghcCompiler}".override
+            (_old: {
+              overrides = with super.pkgs.haskell.lib;
+                sel: sup:
+                  super.overridePinnedDeps (buildCabal sel)
+                  // {
+                    ap-normalize = dontCheck sup.ap-normalize;
+                    clay = doJailbreak sup.clay;
+                    cmark = doJailbreak sup.cmark;
+                    docopt = buildCabal sel "docopt";
+                    filelock = dontCheck sup.filelock;
+                    linear-generics = doJailbreak sup.linear-generics;
+                    req = doJailbreak sup.req;
+                    servant-auth = doJailbreak sup.servant-auth;
+                    servant-auth-server = dontCheck sup.servant-auth-server;
+                    shellcheck = doJailbreak sup.shellcheck;
+                    string-qq = doJailbreak sup.string-qq;
+                    syb-with-class = doJailbreak sup.syb-with-class;
+                    th-abstraction = doJailbreak sup.th-abstraction;
+                  };
+            });
+        };
     };
-  };
 
   ormolu = super.haskellPackages.ormolu;
-
 }
diff --git a/Omni/Bild/Nixpkgs.nix b/Omni/Bild/Nixpkgs.nix
index 828021c..c4934ce 100644
--- a/Omni/Bild/Nixpkgs.nix
+++ b/Omni/Bild/Nixpkgs.nix
@@ -1,5 +1,5 @@
 let
-  sources = import ./Sources.nix { sourcesFile = ./Sources.json; };
+  sources = import ./Sources.nix {sourcesFile = ./Sources.json;};
 
   config = {
     allowAliases = true;
@@ -16,7 +16,7 @@ let
   depsOverlay = _: pkgs: pkgs.overridePinnedDeps pkgs.overrideSource;
 
   overlays = [
-    (_: _: { inherit sources; })
+    (_: _: {inherit sources;})
     (import ./CcacheWrapper.nix)
     (import ./Functions.nix)
     depsOverlay
@@ -24,16 +24,15 @@ let
     (import ./Python.nix)
     (import ./Haskell.nix)
     # backport newer packages from unstable
-    (_: _: { unstable = nixos-unstable-small.pkgs; })
+    (_: _: {unstable = nixos-unstable-small.pkgs;})
   ];
 
   nixos-unstable-small =
-    import sources.nixos-unstable-small { inherit system config overlays; };
-
+    import sources.nixos-unstable-small {inherit system config overlays;};
 in {
-  nixos-24_05 = import sources.nixos-24_05 { inherit system config overlays; };
+  nixos-24_05 = import sources.nixos-24_05 {inherit system config overlays;};
 
-  nixos-24_11 = import sources.nixos-24_11 { inherit system config overlays; };
+  nixos-24_11 = import sources.nixos-24_11 {inherit system config overlays;};
 
   inherit nixos-unstable-small;
 }
diff --git a/Omni/Bild/Python.nix b/Omni/Bild/Python.nix
index 88abe94..035b11c 100644
--- a/Omni/Bild/Python.nix
+++ b/Omni/Bild/Python.nix
@@ -1,15 +1,15 @@
 _self: super: {
   python312 = super.python312.override {
     packageOverrides = _pyself: pysuper:
-      with pysuper.pkgs.python312Packages;
-      let dontCheck = p: p.overridePythonAttrs (_: { doCheck = false; });
+      with pysuper.pkgs.python312Packages; let
+        dontCheck = p: p.overridePythonAttrs (_: {doCheck = false;});
       in {
-        interegular = callPackage ./Deps/interegular.nix { };
+        interegular = callPackage ./Deps/interegular.nix {};
         ipython = dontCheck pysuper.ipython;
-        ludic = callPackage ./Deps/ludic.nix { };
+        ludic = callPackage ./Deps/ludic.nix {};
         mypy = dontCheck pysuper.mypy;
-        outlines = callPackage ./Deps/outlines.nix { };
-        perscache = callPackage ./Deps/perscache.nix { };
+        outlines = callPackage ./Deps/outlines.nix {};
+        perscache = callPackage ./Deps/perscache.nix {};
         tokenizers = dontCheck pysuper.tokenizers;
       };
   };
@@ -17,9 +17,9 @@ _self: super: {
   python311 = super.python311.override {
     packageOverrides = _pyself: pysuper:
       with pysuper.pkgs.python311Packages; {
-        llm-ollama = callPackage ./Deps/llm-ollama.nix { };
+        llm-ollama = callPackage ./Deps/llm-ollama.nix {};
         llm-sentence-transformers =
-          callPackage ./Deps/llm-sentence-transformers.nix { };
+          callPackage ./Deps/llm-sentence-transformers.nix {};
       };
   };
 }
diff --git a/Omni/Bild/Sources.nix b/Omni/Bild/Sources.nix
index f7af81e..dbcd147 100644
--- a/Omni/Bild/Sources.nix
+++ b/Omni/Bild/Sources.nix
@@ -1,14 +1,13 @@
 # This file has been generated by Niv.
-
 let
-
   #
   # The fetchers. fetch_<type> fetches specs of type <type>.
   #
-
-  fetch_file = pkgs: name: spec:
-    let name' = sanitizeName name + "-src";
-    in if spec.builtin or true then
+  fetch_file = pkgs: name: spec: let
+    name' = sanitizeName name + "-src";
+  in
+    if spec.builtin or true
+    then
       builtins_fetchurl {
         inherit (spec) url sha256;
         name = name';
@@ -19,9 +18,11 @@ let
         name = name';
       };
 
-  fetch_tarball = pkgs: name: spec:
-    let name' = sanitizeName name + "-src";
-    in if spec.builtin or true then
+  fetch_tarball = pkgs: name: spec: let
+    name' = sanitizeName name + "-src";
+  in
+    if spec.builtin or true
+    then
       builtins_fetchTarball {
         name = name';
         inherit (spec) url sha256;
@@ -32,18 +33,19 @@ let
         inherit (spec) url sha256;
       };
 
-  fetch_git = name: spec:
-    let
-      ref = if spec ? ref then
-        spec.ref
-      else if spec ? branch then
-        "refs/heads/${spec.branch}"
-      else if spec ? tag then
-        "refs/tags/${spec.tag}"
+  fetch_git = name: spec: let
+    ref =
+      if spec ? ref
+      then spec.ref
+      else if spec ? branch
+      then "refs/heads/${spec.branch}"
+      else if spec ? tag
+      then "refs/tags/${spec.tag}"
       else
         abort
         "In git source '${name}': Please specify `ref`, `tag` or `branch`!";
-    in builtins.fetchGit {
+  in
+    builtins.fetchGit {
       url = spec.repo;
       inherit (spec) rev;
       inherit ref;
@@ -66,24 +68,27 @@ let
   #
 
   # https://github.com/NixOS/nixpkgs/pull/83241/files#diff-c6f540a4f3bfa4b0e8b6bafd4cd54e8bR695
-  sanitizeName = name:
-    (concatMapStrings (s: if builtins.isList s then "-" else s)
-      (builtins.split "[^[:alnum:]+._?=-]+"
-        ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)));
+  sanitizeName = name: (concatMapStrings (s:
+      if builtins.isList s
+      then "-"
+      else s)
+    (builtins.split "[^[:alnum:]+._?=-]+"
+      ((x: builtins.elemAt (builtins.match "\\.*(.*)" x) 0) name)));
 
   # The set of packages used when specs are fetched using non-builtins.
-  mkPkgs = sources: system:
-    let
-      sourcesNixpkgs = import
-        (builtins_fetchTarball { inherit (sources.nixpkgs) url sha256; }) {
-          inherit system;
-        };
-      hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
-      hasThisAsNixpkgsPath = <nixpkgs> == ./.;
-    in if builtins.hasAttr "nixpkgs" sources then
-      sourcesNixpkgs
-    else if hasNixpkgsPath && !hasThisAsNixpkgsPath then
-      import <nixpkgs> { }
+  mkPkgs = sources: system: let
+    sourcesNixpkgs =
+      import
+      (builtins_fetchTarball {inherit (sources.nixpkgs) url sha256;}) {
+        inherit system;
+      };
+    hasNixpkgsPath = builtins.any (x: x.prefix == "nixpkgs") builtins.nixPath;
+    hasThisAsNixpkgsPath = <nixpkgs> == ./.;
+  in
+    if builtins.hasAttr "nixpkgs" sources
+    then sourcesNixpkgs
+    else if hasNixpkgsPath && !hasThisAsNixpkgsPath
+    then import <nixpkgs> {}
     else
       abort ''
         Please specify either <nixpkgs> (through -I or NIX_PATH=nixpkgs=...) or
@@ -92,58 +97,62 @@ let
 
   # The actual fetching function.
   fetch = pkgs: name: spec:
-
-    if !builtins.hasAttr "type" spec then
-      abort "ERROR: niv spec ${name} does not have a 'type' attribute"
-    else if spec.type == "file" then
-      fetch_file pkgs name spec
-    else if spec.type == "tarball" then
-      fetch_tarball pkgs name spec
-    else if spec.type == "git" then
-      fetch_git name spec
-    else if spec.type == "local" then
-      fetch_local spec
-    else if spec.type == "builtin-tarball" then
-      fetch_builtin-tarball name
-    else if spec.type == "builtin-url" then
-      fetch_builtin-url name
+    if !builtins.hasAttr "type" spec
+    then abort "ERROR: niv spec ${name} does not have a 'type' attribute"
+    else if spec.type == "file"
+    then fetch_file pkgs name spec
+    else if spec.type == "tarball"
+    then fetch_tarball pkgs name spec
+    else if spec.type == "git"
+    then fetch_git name spec
+    else if spec.type == "local"
+    then fetch_local spec
+    else if spec.type == "builtin-tarball"
+    then fetch_builtin-tarball name
+    else if spec.type == "builtin-url"
+    then fetch_builtin-url name
     else
       abort
       "ERROR: niv spec ${name} has unknown type ${builtins.toJSON spec.type}";
 
   # If the environment variable NIV_OVERRIDE_${name} is set, then use
   # the path directly as opposed to the fetched source.
-  replace = name: drv:
-    let
-      saneName = stringAsChars
-        (c: if isNull (builtins.match "[a-zA-Z0-9]" c) then "_" else c) name;
-      ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
-    in if ersatz == "" then
-      drv
-    else
-    # this turns the string into an actual Nix path (for both absolute and
-    # relative paths)
-    if builtins.substring 0 1 ersatz == "/" then
-      /. + ersatz
+  replace = name: drv: let
+    saneName =
+      stringAsChars
+      (c:
+        if isNull (builtins.match "[a-zA-Z0-9]" c)
+        then "_"
+        else c)
+      name;
+    ersatz = builtins.getEnv "NIV_OVERRIDE_${saneName}";
+  in
+    if ersatz == ""
+    then drv
     else
-      /. + builtins.getEnv "PWD" + "/${ersatz}";
+      # this turns the string into an actual Nix path (for both absolute and
+      # relative paths)
+      if builtins.substring 0 1 ersatz == "/"
+      then /. + ersatz
+      else /. + builtins.getEnv "PWD" + "/${ersatz}";
 
   # Ports of functions for older nix versions
 
   # a Nix version of mapAttrs if the built-in doesn't exist
-  mapAttrs = builtins.mapAttrs or (f: set:
-    with builtins;
-    listToAttrs (map (attr: {
-      name = attr;
-      value = f attr set.${attr};
-    }) (attrNames set)));
+  mapAttrs =
+    builtins.mapAttrs
+    or (f: set:
+      with builtins;
+        listToAttrs (map (attr: {
+          name = attr;
+          value = f attr set.${attr};
+        }) (attrNames set)));
 
   # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/lists.nix#L295
   range = first: last:
-    if first > last then
-      [ ]
-    else
-      builtins.genList (n: first + n) (last - first + 1);
+    if first > last
+    then []
+    else builtins.genList (n: first + n) (last - first + 1);
 
   # https://github.com/NixOS/nixpkgs/blob/0258808f5744ca980b9a1f24fe0b1e6f0fecee9c/lib/strings.nix#L257
   stringToCharacters = s:
@@ -155,53 +164,72 @@ let
   concatStrings = builtins.concatStringsSep "";
 
   # https://github.com/NixOS/nixpkgs/blob/8a9f58a375c401b96da862d969f66429def1d118/lib/attrsets.nix#L331
-  optionalAttrs = cond: as: if cond then as else { };
+  optionalAttrs = cond: as:
+    if cond
+    then as
+    else {};
 
   # fetchTarball version that is compatible between all the versions of Nix
-  # deadnix: skip
-  builtins_fetchTarball = { url, name ? null, sha256 }@attrs:
-    let inherit (builtins) lessThan nixVersion fetchTarball;
-    in if lessThan nixVersion "1.12" then
+  builtins_fetchTarball = {
+    url,
+    name ? null,
+    # deadnix: skip
+    sha256,
+  } @ attrs: let
+    inherit (builtins) lessThan nixVersion fetchTarball;
+  in
+    if lessThan nixVersion "1.12"
+    then
       fetchTarball
-      ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
-    else
-      fetchTarball attrs;
+      ({inherit url;} // (optionalAttrs (!isNull name) {inherit name;}))
+    else fetchTarball attrs;
 
   # fetchurl version that is compatible between all the versions of Nix
-  # deadnix: skip
-  builtins_fetchurl = { url, name ? null, sha256 }@attrs:
-    let inherit (builtins) lessThan nixVersion fetchurl;
-    in if lessThan nixVersion "1.12" then
+  builtins_fetchurl = {
+    url,
+    name ? null,
+    # deadnix: skip
+    sha256,
+  } @ attrs: let
+    inherit (builtins) lessThan nixVersion fetchurl;
+  in
+    if lessThan nixVersion "1.12"
+    then
       fetchurl
-      ({ inherit url; } // (optionalAttrs (!isNull name) { inherit name; }))
-    else
-      fetchurl attrs;
+      ({inherit url;} // (optionalAttrs (!isNull name) {inherit name;}))
+    else fetchurl attrs;
 
   # Create the final "sources" from the config
   mkSources = config:
     mapAttrs (name: spec:
-      if builtins.hasAttr "outPath" spec then
+      if builtins.hasAttr "outPath" spec
+      then
         abort
         "The values in sources.json should not have an 'outPath' attribute"
-      else
-        spec // { outPath = replace name (fetch config.pkgs name spec); })
+      else spec // {outPath = replace name (fetch config.pkgs name spec);})
     config.sources;
 
   # The "config" used by the fetchers
-  mkConfig = { sourcesFile ?
-      if builtins.pathExists ./sources.json then ./sources.json else null
-    , sources ? if isNull sourcesFile then
-      { }
-    else
-      builtins.fromJSON (builtins.readFile sourcesFile)
-    , system ? builtins.currentSystem, pkgs ? mkPkgs sources system }: rec {
-      # The sources, i.e. the attribute set of spec name to spec
-      inherit sources;
-
-      # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
-      inherit pkgs;
-    };
-
-in mkSources (mkConfig { }) // {
-  __functor = _: settings: mkSources (mkConfig settings);
-}
+  mkConfig = {
+    sourcesFile ?
+      if builtins.pathExists ./sources.json
+      then ./sources.json
+      else null,
+    sources ?
+      if isNull sourcesFile
+      then {}
+      else builtins.fromJSON (builtins.readFile sourcesFile),
+    system ? builtins.currentSystem,
+    pkgs ? mkPkgs sources system,
+  }: rec {
+    # The sources, i.e. the attribute set of spec name to spec
+    inherit sources;
+
+    # The "pkgs" (evaluated nixpkgs) to use for e.g. non-builtin fetchers
+    inherit pkgs;
+  };
+in
+  mkSources (mkConfig {})
+  // {
+    __functor = _: settings: mkSources (mkConfig settings);
+  }